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        <h1>SVG</h1>
    


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            <time class="pink-link-context" datetime="2015-10-18T16:00:00.000Z"><a href="/2015/10/19/SVG/">2015-10-19</a></time>

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    <ol class="section table-of-contents"><li class="section table-of-contents-item section table-of-contents-level-2"><a class="section table-of-contents-link" href="#SVG是什么？"><span class="section table-of-contents-text">SVG是什么？</span></a></li><li class="section table-of-contents-item section table-of-contents-level-2"><a class="section table-of-contents-link" href="#制作SVG的工具"><span class="section table-of-contents-text">制作SVG的工具</span></a></li><li class="section table-of-contents-item section table-of-contents-level-2"><a class="section table-of-contents-link" href="#如何使用SVG"><span class="section table-of-contents-text">如何使用SVG</span></a><ol class="section table-of-contents-child"><li class="section table-of-contents-item section table-of-contents-level-3"><a class="section table-of-contents-link" href="#绘制图像"><span class="section table-of-contents-text">绘制图像</span></a></li><li class="section table-of-contents-item section table-of-contents-level-3"><a class="section table-of-contents-link" href="#生成XML格式的SVG代码"><span class="section table-of-contents-text">生成XML格式的SVG代码</span></a></li><li class="section table-of-contents-item section table-of-contents-level-3"><a class="section table-of-contents-link" href="#将生成的XML格式的代码复制到一个文件中，可以新建一个文件，文件的后缀名是-svg"><span class="section table-of-contents-text">将生成的XML格式的代码复制到一个文件中，可以新建一个文件，文件的后缀名是.svg</span></a></li><li class="section table-of-contents-item section table-of-contents-level-3"><a class="section table-of-contents-link" href="#使用方式"><span class="section table-of-contents-text">使用方式</span></a></li></ol></li></ol>
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            <div class="entry pink-link-context">
                <p>使用SVG和Canvas能够在网页上绘制各种各样的图形，让网页中的效果更加的绚丽…<br><a id="more"></a></p>
<h2 id="SVG是什么？"><a href="#SVG是什么？" class="headerlink" title="SVG是什么？"></a>SVG是什么？</h2><p>1、SVG是一种图像格式，它是基于XML语言可以缩放的矢量图<br>2、SVG可以用于制作静态图片，也可以制作动画和用户界面<br>3、SVG由于是基于XML语言，所以可以用CSS来控制SVG图像内容的样式</p>
<h2 id="制作SVG的工具"><a href="#制作SVG的工具" class="headerlink" title="制作SVG的工具"></a>制作SVG的工具</h2><p>1、<a href="https://svg-edit.github.io/svgedit/releases/svg-edit-2.8.1/svg-editor.html" target="_blank" rel="external">SVG图像免费在线工具</a></p>
<p>2、Adobe公司的Illustrator</p>
<h2 id="如何使用SVG"><a href="#如何使用SVG" class="headerlink" title="如何使用SVG"></a>如何使用SVG</h2><p>使用SVG图像的在线制作工具进行制作</p>
<h3 id="绘制图像"><a href="#绘制图像" class="headerlink" title="绘制图像"></a>绘制图像</h3><p><img src="/images/SVG使用演示1.png" alt="SVG演示图1"></p>
<h3 id="生成XML格式的SVG代码"><a href="#生成XML格式的SVG代码" class="headerlink" title="生成XML格式的SVG代码"></a>生成XML格式的SVG代码</h3><p><img src="/images/SVG使用演示2.png" alt="SVG演示图1"></p>
<h3 id="将生成的XML格式的代码复制到一个文件中，可以新建一个文件，文件的后缀名是-svg"><a href="#将生成的XML格式的代码复制到一个文件中，可以新建一个文件，文件的后缀名是-svg" class="headerlink" title="将生成的XML格式的代码复制到一个文件中，可以新建一个文件，文件的后缀名是.svg"></a>将生成的XML格式的代码复制到一个文件中，可以新建一个文件，文件的后缀名是.svg</h3><h3 id="使用方式"><a href="#使用方式" class="headerlink" title="使用方式"></a>使用方式</h3><p>1、可以通过img标签的src将svg图显示在网页上<br><img src="/images/使用src引入svg.png" alt="使用src引入svg"><br>2、将生成的SVG的代码直接复制在网页中，那么就可以通过控制SVG代码中的标签可控制SVG图片内容的样式，或者是制作动画<br>下面是一个简单的demo<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div><div class="line">58</div><div class="line">59</div><div class="line">60</div><div class="line">61</div><div class="line">62</div><div class="line">63</div><div class="line">64</div><div class="line">65</div><div class="line">66</div><div class="line">67</div></pre></td><td class="code"><pre><div class="line">&lt;!DOCTYPE html&gt;</div><div class="line">&lt;html lang=&quot;en&quot;&gt;</div><div class="line">&lt;head&gt;</div><div class="line">    &lt;meta charset=&quot;UTF-8&quot;&gt;</div><div class="line">    &lt;title&gt;useSVG&lt;/title&gt;</div><div class="line">    &lt;style&gt;</div><div class="line">        @keyframes translate &#123;</div><div class="line">            50% &#123;</div><div class="line">                fill: gold;</div><div class="line">                transform: translate(200px, 100px);</div><div class="line">            &#125;</div><div class="line">        &#125;   </div><div class="line">        .translate &#123;</div><div class="line">            animation:translate  2s;</div><div class="line">        &#125;</div><div class="line">        @keyframes rotate &#123;</div><div class="line">            50% &#123;</div><div class="line">                transform: rotateX(90deg);</div><div class="line">            &#125;</div><div class="line">        &#125;   </div><div class="line">        .rotate &#123;</div><div class="line">            animation:rotate 2s;</div><div class="line">        &#125;</div><div class="line">        @keyframes scale &#123;</div><div class="line">            50% &#123;</div><div class="line">                stroke-width: 0;</div><div class="line">                transform: scale(1.5);</div><div class="line">            &#125;</div><div class="line">        &#125;   </div><div class="line">        .scale &#123;</div><div class="line">            animation:scale 2s;</div><div class="line">        &#125;</div><div class="line">    &lt;/style&gt;</div><div class="line">&lt;/head&gt;</div><div class="line">&lt;body&gt;</div><div class="line">    &lt;h1&gt;svg的使用&lt;/h1&gt;</div><div class="line">    &lt;div class=&quot;buttons&quot;&gt;</div><div class="line">        &lt;input data-add=&quot;translate&quot; type=&quot;button&quot; value=&quot;平移动画&quot;&gt;</div><div class="line">        &lt;input data-add=&quot;rotate&quot; type=&quot;button&quot; value=&quot;旋转动画&quot;&gt;</div><div class="line">        &lt;input data-add=&quot;scale&quot; type=&quot;button&quot; value=&quot;缩放动画&quot;&gt;</div><div class="line">        &lt;input data-remove=&quot;animation&quot; type=&quot;button&quot; value=&quot;移除动画&quot;&gt;</div><div class="line">    &lt;/div&gt;</div><div class="line">    &lt;svg width=&quot;640&quot; height=&quot;480&quot; xmlns=&quot;http://www.w3.org/2000/svg&quot; xmlns:svg=&quot;http://www.w3.org/2000/svg&quot;&gt;</div><div class="line">     &lt;g&gt;</div><div class="line">      &lt;title&gt;Layer 1&lt;/title&gt;</div><div class="line">      &lt;rect id=&quot;svg_1&quot; height=&quot;115&quot; width=&quot;208&quot; y=&quot;123&quot; x=&quot;177&quot; stroke-width=&quot;5&quot; stroke=&quot;#000000&quot; fill=&quot;#00ff00&quot;/&gt;</div><div class="line">     &lt;/g&gt;</div><div class="line">    &lt;/svg&gt;</div><div class="line">&lt;/body&gt;</div><div class="line">&lt;script&gt;</div><div class="line">    var btns = document.querySelectorAll(&quot;.buttons input&quot;);</div><div class="line">    var rect = document.querySelector(&quot;#svg_1&quot;);</div><div class="line">    for(var i = 0; i &lt; btns.length; i++) &#123;</div><div class="line">        btns[i].addEventListener(&apos;click&apos;, transfromRect);</div><div class="line">    &#125;</div><div class="line">    function transfromRect() &#123;</div><div class="line">        if(this.getAttribute(&apos;data-add&apos;)) &#123;</div><div class="line">            rect.classList.add(this.getAttribute(&apos;data-add&apos;));</div><div class="line">        &#125;</div><div class="line">        if(this.getAttribute(&apos;data-remove&apos;)) &#123;</div><div class="line">            rect.classList.remove(&quot;translate&quot;);</div><div class="line">            rect.classList.remove(&quot;rotate&quot;);</div><div class="line">            rect.classList.remove(&quot;scale&quot;);</div><div class="line">        &#125;   </div><div class="line">    &#125;</div><div class="line">&lt;/script&gt;</div><div class="line">&lt;/html&gt;</div></pre></td></tr></table></figure></p>

                
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